Filter.



E. E. HAUER.

FILTER.

APPLICATION FILED SEPT. 23, I914.

Patented Dec. 14, 1915.

3 SHEETS-SHEET lr Wag/4,?

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E. E. HAUER,

FILTER.

APPLICATION FILED SEPT- 23, I914.

' M3ented Dec. 14,1915.

3 SHEETS-SHEET 2.

n I n I I w avwewcoz Wit names E. E. HAUER.

FILTER.

APPLICATION mm SEPT. 23. 1914.

Patented Dec. 14, 1915.

3 SHEETS-SHEET 3.

UNITED srratrns ATEN ELMER E. BAUER, OF SPRINGFIELD, OHIO, ASSIGNOR TO THE LAGONDA MANUFAG- TUBING COMPANY, OF SPRINGFIELD, OHIO, A CORPORATION OF OHIO.

FILTER.

Specificationof Letters Patent.

Application filed September 23, 19 14. Serial No. 863,228.

ence being had therein to the accompanying drawings. My invention relates to water purification and more particularly to a filter for extracting oil, grease or other foreign matter from water.

The object of my invention is to provide a simple, efficient and durable filter and with that end in view I have devised a novel arrangement of the filtering element giving a maximum area of filtering surface and so arranged that it can be readily removed from its casing for cleaning 'or renewal.

A further object is to provide means whereby a plurality of filtering elements may-be employed, any one of which can be removed for cleaning without interrupting the flow through the others.

With these and other objects in view my invention consists of the constructions and combinations hereinafter described and set forth in the claims.

. In the accompanying drawings which form a part of this specification Figure 1 is a longitudinal section of a filter embodying my invention; Fig. 2 is a view taken on the line 2-2 of Fig. 1 looking in the direction of the arrows; Fig. 3 is a cross-section taken on the line 3-3 of Fig. 4; Fig. 4 isan en-.

larged quarter section of the filtering element; Fig. 5 shows the filtering material or fabric and flexible frame on which it. is spread for winding about an inner perforated cylinder; Figs. 6 and 7 are details of the frame; Figs. 8 and 9 show modification of means for attaching thecovers for the cleaning chambers, Fig. 9 being taken on the line 99 of Fig. 8 and Fig. 10 shows modified form of spacing frame.

Like numerals represent the same parts in the several views.

In the drawings 1 represents a casing having a portion 2 secured thereto by bolts 3. Said casing is provided with a vertical partition 4 and a horizontal partition 5 forming a filtering chamber 6 and an inlet passage 7. An inlet 8 and outlet 9 have flanges adapted to be connected in a pipe line.

Any number of filtering elements may be .sheet and frame about the cylinder.

4 employed but for the purpose of illustration two are shown in the drawingsand an opening or passage-way 10 is provided in the partition 5 for each filtering element. Extensions 11 of the casing opposite each of the openings 10 form cleaning chambers 12. Said extensions are provided with caps or covers 13 secured by bolts 14. Each of the filtering elements is provided with a disk 15 on which an inner or centrally disposed perforated cylinder 16 is seated.

A flexible frame which may be formed in any suitable way is shown as having longitudinally extendingmembers 17 hinged to spindles 18, the ends of the spindles having heads 19 to hold them in place and spacing tubes 20 are interposed between the members 17. A sheet of filtering fabric or matesecured thereto at its respective ends by hooks 22. The combined sheet and frame is then wound about the cylinder 16, the frame acting as a spacer between the windings of the sheet and ties 23 are provided to tie said outer or surrounding perforated cylinder, 24 is secured to the disk15 and when the sheet of filtering fabric or material and flexible frame arewound about and tied to the inner cylinder said sheet, frame and inner cylinder are inserted within the outer cylinder and seated on the disk. It will be seen that the disk closes the lower end of the inner cylinder as well as the lower end of the annular chamber formed between the inner and outer cylinders; and a head or cover 25 closes the upper end of said annular chamber. The filtering, fabric and the spacing frame therefor are disposed within said annular chamher and the liquid to be filtered is introduced through the upper end of the inner cylinder.

An annular valve 26 is provided for each of the openings 10 and is seated when 'in open position on'the partition 5 by a projecting flange 27 and when moved to closed position is seated against a ring 28 in the extension 11 of the casing. Said valves are also provided with inwardly protecting flanges 29 which project under rings '30 secured to the outer perforated cylinder so that when the filtering elements are in filtering position the valves will be held to their seats on the partition 5.

Shafts or spindles 31 having screw-threads engaging the screw-threads of openings in the disks 15 of the filtering elements are seated at their lower ends in boxes 32 and are made angular at their upper ends to fit recesses of corresponding shape in stems 33 that project through stuffing boxes 3i 1n the covers 13 and are provided with handwheels 35.

The disks 15 are provided with ring plates 36 which when the screw shafts are operated in one direction contact the lower edge of the valve 26 and lift them to closed position; and by operating the shafts 1n the opposite direction the valve moves to open position and is held in .open position by the rings 30 engaging the projections 29. \Vhen the valve for any one of the filtering ments is closed and said element is in its cleaning position, the cap or cover 13 1s removed and the inner perforated cylinder with the filtering fabric or materialand flexible frame can be taken from its position in the outer perforated cylinder and removed from the casing for cleaning or repairs without interrupting the flow of the liquid through the other filtering elements. Projections 37 on the casing engaging ears 38 on the disks prevent the disks from turning.

Figs. 8 and 9 show a modification of the means for attaching the covers 18*", in which said covers are provided with beveled or inclined openings 39 and the flange 40 of the extension 11 of the casing is provided with slots 41. Bolts 14 extend through said slots and openings and are tightened in place by nuts 42. Spring pressed plugs 43 seated in recesses of the cover engage the bolts and when the nuts are losened press the bolts out of engagement with the flange 40 and the cover can be removed. The nuts are loosened sufficiently to admit of this movement and yet retain their engagement with the bolts so as to hold the'bolts attached to the cover when the cover is removed, thus preventing their being mislaid or lost.

Fig. 10 shows a modified form of spacing frame in which interlocking spirals 44: are hinged together'as shown, the spirals at the respective ends being provided with spindles 45 for the engagement of hooks 22 to secure the filtering fabric or material 21 thereto.

Having thus described my invention I claim 1. In a filter, a perforated cylinder, a,

ele-

cylinder and secured in place, the frame acting as a spacer between the windings of sa d sheet and means to attach the edges of said sheet to. said frame, substantially as described.

3. In a filter, a perforated cylinder, a sheet of filtering material and a flexible frame formed of a plurality of hinged members on which said sheet is spread, means to attach the edges of the sheet to the frame, the combined sheet and frame being wound about said cylinder and secured in place, the frame acting as a spacer between the windings of said sheet, substantially as described.

4. In a filter, two perforated cylinders, one disposed within the other forming an annular chamber, means to close the respective ends of said chamber, a sheet of filtering material and a flexible frame on which said sheet is spread, the combined sheet and frame being wound about said inner cylinder and secured within said outer cylinder and means to conduct the liquid to be filtered to the interior of said inner cylinder, substantially as described.

5. In a filter, a perforated cylinder, a sheet of filtering material and a flexible frame on which said sheet is spread, the combined sheet and frame being wound about said cylinder, the frame acting as a spacer between the windings of said sheet and means to secure said sheet and frame in place on said cylinder, substantially as described.

'6. In a filter, a perforated cylinder, a sheet of filtering material and a flexible frame on which said sheet is spread, the combined sheet and frame being wound about said cylinder, the frame acting as a spacer between the windings of said sheet theannular chamber formed by said cylinders being closed by said disk, means to close the'other end of said chamber, an inlet to the other end of said inner cylinder and a I cylinder, one end of the inner cylinder and valve to control said inlet, substantially as described.

In testimony whereof I have hereunto afiixed my signature in the presence of two witnesses. I

. ELMER E. HAUER. Witnesses:

' OLIVERYH. HAUsE,

I Gnovnn ILGEN. 

